Patents by Inventor Yoshikazu Iidaka

Yoshikazu Iidaka has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Electron tube and method for producing the same
    Patent number: 7002288
    Abstract: An electron tube includes at least one metal film formed on a base, at least one linear member provided above the base, and at least one additional member for connecting said at least one linear member to said at least one metal film. The at least one linear member is connected to the at least one metal film by welding the at least one additional member to the at least one metal film.
    Type: Grant
    Filed: February 19, 2002
    Date of Patent: February 21, 2006
    Assignee: Futaba Corporation
    Inventors: Yoshihisa Yonezawa, Yukio Ogawa, Hiroaki Kawasaki, Yasuhiro Nohara, Yoshikazu Iidaka
  • Double-faced vacuum fluorescent display device and method for driving same
    Patent number: 6611094
    Abstract: A simple and slim double-faced vacuum fluorescent display device has no grid, thereby lowing the power consumption and fabrication cost thereof. Anode electrodes on one of the front plate and the back plate function as grids for anode electrodes on the other one of the front plate and the back plate. The light emitted from anode electrodes is not blocked by grids, thereby enhancing light emitting efficiency thereof.
    Type: Grant
    Filed: January 12, 2001
    Date of Patent: August 26, 2003
    Assignee: Futaba Denshi Kogyo Kabushiki Kaisha
    Inventors: Yukio Ogawa, Kazuyoshi Ishikawa, Katsutoshi Kougo, Yoshikazu Iidaka, Hiroaki Kawasaki
  • Electron tube and method for producing same
    Publication number: 20020113543
    Abstract: An electron tube includes at least one metal film formed on a base, at least one linear member provided above the base, and at least one additional member for connecting said at least one linear member to said at least one metal film. The at least one linear member is connected to the at least one metal film by welding the at least one additional member to the at least one metal film.
    Type: Application
    Filed: February 19, 2002
    Publication date: August 22, 2002
    Applicant: Futaba Corporation
    Inventors: Yoshihisa Yonezawa, Yukio Ogawa, Hiroaki Kawasaki, Yasuhiro Nohara, Yoshikazu Iidaka
  • Double-faced vacuum fluorescent display device and method for driving same
    Publication number: 20010008361
    Abstract: In a simple and slim double-faced vacuum fluorescent display device having no grid with low power consumption and low fabrication cost, in order to turn on fluorescent layers P111 to P141 of segments D11 to D14 in an anode electrode set D1 on a back plate S2, 12V, 0V, 0V and −12V are applied to the segments D11 to D14 in the anode electrode set D1 on the back plate S2, the other segments on the back plate S1, segments C11 to C15 in an anode electrode set C1 on a front plate S2 and the other segments on the front plate S1, respectively. In order to turn on segments C12 and C16 in the anode electrode set C1 on the front plate S1, 12V, 0V, 0V and −12V are applied to the segments C12 and C16 in the anode electrode set C1 on the front plate S1, the other segments on the front plate S1, the segments D1 to D14 on the back S2 and the other segments on the back plate S2, respectively.
    Type: Application
    Filed: January 12, 2001
    Publication date: July 19, 2001
    Applicant: Futaba Denshi Kogyo Kabushiki Kaisha
    Inventors: Yukio Ogawa, Kazuyoshi Ishikawa, Katsutoshi Kougo, Yoshikazu Iidaka, Hiroaki Kawasaki